The two ends of the curve now have different owners
A rate rise now transmits fastest to exactly the floating-rate private-credit borrowers whose non-accruals are already at post-2021 highs.
Two weeks before the 16 September FOMC, the market has flipped. Before Kevin Warsh spoke at Jackson Hole on 28 August, futures priced roughly a 36% chance of a quarter-point hike; afterwards, between 56% and 60% depending on which contract you read. MarketWatch put it at 57.4% against 35.9%; Forbes at 58% against 36%. Warsh's line, as reported, was that "two percent is a firm and fixed target" and that "short-term interest rates are the primary tool". This was already the internal direction of travel. Three FOMC members dissented in favour of a hike in July, when the rate was held at 3.50–3.75% for a fifth straight meeting, and four of the twelve Reserve Banks voted to raise the discount rate. Now put that next to the other arm of the state. From 9 September through 4 November, the Treasury will buy back at least $4bn of 10–30 year debt per operation, double the previous cap. Bessent called long-bond liquidity "especially poor" and the programme a "Treasury twist" (Guardian). So the Fed may push the front end up while the Treasury leans on the long end from below. The 2-year is already at 4.34%, up 7bp on the week; 2s10s is 39bp. A flattening curve driven by policy in both directions is not an academic problem for anyone funding floating-rate assets. Every direct loan in a BDC portfolio is priced off SOFR, currently 3.65%. Borrowers already generating 3.95% non-accruals at the ten largest BDCs would pay 25bp more, immediately.